dc.contributor.author | Erattupuzha, Sonia | |
dc.contributor.author | Covington, Cody L | |
dc.contributor.author | Russakoff, Arthur | |
dc.contributor.author | Lötstedt, Erik | |
dc.contributor.author | Larimian, Seyedreza | |
dc.contributor.author | Hanus, Václav | |
dc.contributor.author | Bubin, Sergiy | |
dc.contributor.author | Koch, Markus | |
dc.contributor.author | Gräfe, Stefanie | |
dc.contributor.author | Baltuška, Andrius | |
dc.contributor.author | Xie, Xinhua | |
dc.contributor.author | Yamanouchi, Kaoru | |
dc.contributor.author | Varga, Kálmán | |
dc.contributor.author | Kitzler, Markus | |
dc.date.accessioned | 2017-08-09T09:49:40Z | |
dc.date.available | 2017-08-09T09:49:40Z | |
dc.date.issued | 2017-05-31 | |
dc.identifier.citation | Erattupuzha, Sonia et al. (2017) Enhanced ionisation of polyatomic molecules in intense laser pulses is due to energy upshift and field coupling of multiple orbitals. Journal of Physics B: Atomic, Molecular and Optical Physics. Volume 50. Number 12. pp. 1-18 | ru_RU |
dc.identifier.issn | 0953-4075 | |
dc.identifier.uri | https://doi.org/10.1088/1361-6455/aa7098 | |
dc.identifier.uri | http://nur.nu.edu.kz/handle/123456789/2535 | |
dc.description.abstract | We present the results of a combined experimental and numerical study on strong-field ionisation of acetylene performed with the aim of identifying the mechanism behind the previously reported surprisingly large multi-electron ionisation probabilities of polyatomic molecules. Using coincidence momentum imaging techniques and time-dependent density functional simulations, we show that the reported efficient ionisation is due to the combined action of a significant geometrically induced energy upshift of the most relevant valence orbitals as the C–H distance stretches beyond about two times the equilibrium distance, and a strong increase in the coupling between multiple molecular orbitals concomitant with this stretch motion. The identified enhanced ionisation mechanism, which we refer to as EIC-MOUSE, is only effective for molecules aligned close to parallel to the laser polarisation direction, and is inhibited for perpendicularly aligned molecules because of a suppression of the C–H stretch motion during the onset of ionisation. | ru_RU |
dc.language.iso | en | ru_RU |
dc.publisher | Journal of Physics B: Atomic, Molecular and Optical Physics. https://doi.org/10.1088/1361-6455/aa7098 | ru_RU |
dc.rights | Attribution-NonCommercial-ShareAlike 3.0 United States | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/3.0/us/ | * |
dc.subject | coupling of multiple orbitals | ru_RU |
dc.subject | multiple ionisation and fragmentation of polyatomic molecules | ru_RU |
dc.subject | enhanced ionisation | ru_RU |
dc.subject | Research Subject Categories::NATURAL SCIENCES::Physics::Atomic and molecular physics | ru_RU |
dc.title | Enhanced ionisation of polyatomic molecules in intense laser pulses is due to energy upshift and field coupling of multiple orbitals | ru_RU |
dc.type | Article | ru_RU |
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